-We evaluate the results of stenting and angioplasty on carotid bifurcation stenotic lesions using protection systems, emphasizing the indications and technical aspects. Seventy-nine patients, mean age 64.5 years were treated from February,1998 to March, 2003. All patients were included in NASCET study criteria. Forty three patients were treated without the protection systems and thirty six were treated with carotid protection filtering system (Angioguard, EPI). Technical success and 6-months carotid Doppler ultrasound follow-up showing stent patency were achieved in all patients. One major stroke and one death due to intracranial reperfusion bleeding occurred in patients treated without cerebral protection devices. Only one patient presenting hyper perfusion syndrome improving after 7 days, was found in the group treated with the cerebral protection filter mechanism, no other neurologic symptom or death occured in this group. Stenting and angioplasty with protection systems for thromboembolic debris is a safe endovascular method to treat stenotic lesions in the carotid bifurcation with low morbidity and mortality.KEY WORDS: carotid artery stent, carotid artery atherosclerosis, endovascular therapy.Tratamento endovascular das lesões estenóticas em bifurcação carotídea: estudo retrospectivo de 79 pacientes tratados por "stent" e angioplastia com e sem mecanismos de proteção cerebral RESUMO -Este estudo mostra a experiência e resultados da terapêutica endovascular nas lesões estenóti-cas em bifurcação carotídea. Entre fevereiro de 1998 e março de 2003 foram tratados 79 pacientes com idades entre 57 e 72 anos (média 64,5 anos) sendo 45 do masculino e 34 do feminino. Todos os pacientes enquadravam-se nos critérios do estudo "NASCET" com comprometimento das artérias carótidas internas. Dos 79 pacientes, 43 foram tratados sem os sistemas de proteção e 36 pacientes foram tratados com sistema de proteção. Dos 36 pacientes tratados com sistema de proteção foram utilizados filtros de proteção (Angioguard e EPI). Observou-se melhora angiográfica em todos os 79 pacientes tratados. Ultrasom Doppler realizado após 6 meses mostrou artérias pérvias em todos os pacientes. Nos 43 pacientes tratados por "stent"/angioplastia sem a utilização de sistemas de proteção tivemos um paciente com déficit neurológi-co que perdurou por mais de 30 dias ("stroke major") e um óbito por transformação hemorrágica devido à reperfusão. Ocorreu síndrome de hiperperfusão em 1 paciente dos 36 pacientes tratados com o sistema de proteção, regredindo em 7 dias, sendo que nos demais não houve morbi-mortalidade. A angioplastia e "stent" no território carotídeo com a utilização de sistema de proteção é um método seguro com reduzida morbidade e mortalidade estando indicada nas lesões estenóticas das bifurcações carotídeas. PALAVRAS-CHAVE: stent artéria carotída, aterosclerose carotídea, terapêutica endovascular.
Paciente de 83 anos, feminina, com acidente vascular cerebral isquêmico por obstrução da artéria cerebral média direita. Realizada trombólise intra-arterial após cinco horas de evolução com controle da hipotensão usando noradrenalina obtendo sucesso na evolução e acompanhamento. Um aumento da morbidade e mortalidade em pacientes com hipotensão tem sido relatado. O controle da hipotensão arterial em pacientes com AVC é uma das medidas importantes na fase aguda da doença para uma boa evolução.
RESUMO
PALAVRAS-CHAVEOsteoporose. Vertebroplastia. Fratura vertebral.
ABSTRACT
Percutaneous vertebroplasty. Presentation of our experience based on 39 patientsPercutaneous vertebroplasty is a secure and efficient procedure for the treatment of the pain and the immobility associated to vertebral compression-fractures. The pain is alleviated few minutes after the injection of acrylic cement, strengthening the structure and stabilizing the vertebral body.
Background: Guillain Barre Syndrome (GBS) and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) are the two most common forms of treatable IMNs. Antibodies targeting proteins at paranodal cell-adhesion molecules such as contactin-1 (CNTN1), neurofascin-155 (NF155), contactin-associated protein 1 (CASPR1), and nodal neurofascins-NF140 and NF186, have been discovered in CIDP patients. Methods: Between August 2021 and January 2023, at BC Neuroimmunology laboratory, Vancouver we screened a total of 214 sera of patients for detecting nodal and paranodal antibodies with a fixed CBA. These patient sera were assayed for the presence of NF140, NF155, NF186, CNTN1, plus Caspr1 antibodies. The final diagnosis and response to therapy of positive cases were evaluated by a questionnaire requested from their physicians. Results: 10 cases were positive for nodal/paranodal antibodies by CBA (mean age 52.4 ± 15.4 years). Two cases were NF155 Ab positive CIDP with good response to conventional therapies. Three cases were double positive for NF140 and 186 Abs, three were double positive for CNTN1 and CASPR1 Abs. Interestingly, two cases were triple positive with GBS presentation. Conclusions: We identified a subgroup of nine patients with CIDP nodal and paranodal antibodies. Among them, two cases had triple positive antibodies with GBS presentation and poor response to plasma exchange and IVIg.
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